Terms, in plain English
Written by a student, for whoever is reading. No lawyer has been anywhere near this page, which is rather the point.
What this site is
A pile of small browser games about maths, physics, chemistry, biology and ICT, plus a few classic puzzles. It is a hobby project. It is free, and it is going to stay free, because there is nothing here that costs money to run.
You do not have an account
There is no sign up, no login and no password. That is deliberate. It also means there is no account for anyone to break into, and nothing of yours sitting on a server somewhere.
Your scores are yours
Top scores and medals are saved in your own browser using local storage. They never leave your device. Two consequences worth knowing: if you clear your browsing data they are gone, and if you open the site on your phone you will not see the scores from your laptop. There is no way for me to get them back for you, because I never had them.
Nothing is tracked
No analytics, no advertising, no cookies, no third-party scripts. I do not know who you are, how often you visit or which game you like. The server keeps ordinary web logs, the same as every website does, and that is the lot.
The questions might be wrong
The science and maths content follows the IGCSE Grade 10 syllabus as best I understand it, but I am a student, not an exam board. If a question disagrees with your textbook, trust the textbook. Please do not use this as your only revision, and please do not blame it for a grade. It is practice, not a teacher.
Play nicely
Do not try to break the site, overload it, or pass the games off as your own work. Beyond that, do what you like. Share a link, beat your friend's score, use it in a free lesson.
No promises
The site is provided as it is. It might go down, a game might have a bug, and I might change or remove things without warning. I am not responsible for anything that happens as a result of using it, including a maths answer you were sure was right.
Getting in touch
If you spot a mistake in a question or something is broken, say so. Corrections are genuinely welcome, and a wrong answer in a chemistry quiz bothers me more than it bothers you.
Last updated 18 September 2026.